Não informado. (1977). Water quality international. International Association on Water Pollution Research and Control.
Chicago-Zitierstil (17. Ausg.)Não informado. Water Quality International. London: International Association on Water Pollution Research and Control, 1977.
MLA-Zitierstil (8. Ausg.)Não informado. Water Quality International. International Association on Water Pollution Research and Control, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.